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Videos
The Romans plowed over the city of Carthage and sowed salt into the soil
Did the Romans really sow the lands of Carthage with salt?
Public transportation
Public transportation is an indispensable service in big cities. There are means of...
labor camp barracks
Several labor camps were established in the communist Eastern Bloc, the existence of which was...
Ladybug
The seven-spot ladybug is probably the most best-known of all the ladybirds. Its conspicuous...
Archimedes’ principle with gasses
Is there a difference between the weight of a plastic bottle filled with air and the weight of a...
The dangers of aluminum production
The use of bauxite, which is first processed into alumina and then into aluminum, can be harmful.
Air transportation
Air transportation has become the fastest and most reliable way of traveling. Thanks to air...
airplane
Since the advent of air travel, huge distances can be covered fast; today any part of the world...
Narrow-gage railway
Narrow-gage railways can be great fun on an excursion. As they chug along, they provide a great...
archeological excavation
In archeology, excavation is the exposure, processing and recording of archeological finds.
Air transportation
Air transportation has become the fastest, most reliable and most popular form of travel.
gray wolf
The domestication of the wolf began more than 10000 years ago. After humans, it is the most...
Sound localization
Sound localization is an important element in orientation. A sound reaches the ear closest to it...
Hungarian gray cattle
This gray, robust cattle breed with characteristic long and curved horns is indigenous to Hungary.
Local time and standard time
Life could not work in this accelerated global world if we still used local times. Why, you ask?...
